 
  
  
   
 
   
  
 
  is a self acceleration
      is a self acceleration
 
  
     
 - normal pulsars (Will 1993)
 
 - MSPs (Bell 1996)
Binary Pulsars ?
 
  
     
 
  Rocket in a binary system
   Rocket in a binary system 
 
  Forced eccentricity and polaristion of orbit
   Forced eccentricity and polaristion of orbit 
 
  ;    Treat GR precession as before
     ;    Treat GR precession as before 
 - 4 MSPs (Bell & Damour 1996)
Ranks with Huges-Drever test as the most precise null test of physics ever made